Had comp. thyroidectomy 2/9, began Synthroid right after. Body does not tolerate Synth. SEVERE muscle pain & weakness, nausea, diahrrea,headache, terrible GI upsets, no appetite, body either feels very cold or constantly sweating, no enegery left to even crawl out of bed. Have seen 4 local Endo's and all say problems not the result of Synth. They all began within 1 week of begining Synth. (started at 100 mcgs. Usual TSH around 12-30) Dr.'s want to raise dose to 125mcgs.